The predominant effect that [Howell] Harris’s preaching produced was terror. As he mentioned himself, his main theme was the misery of those without Christ and the pronouncement of doom upon idlers and frequenters of the games and revels. As a result, these traditional pastimes that had reigned for centuries were overthrown, nor have they yet been able to raise their heads again. The influence produced by Harris’s preaching was experienced by a fifteen-year-old youth, the son of a man called Sion Griffith. He came quite thoughtlessly to the meeting only because he was curious. But an arrow entered his heart and for all his efforts he could not shake free of it. His turmoil increased. The agony of his heart bordered on insanity, until at last he determined to put an end to himself by throwing himself into the sea, in that to continue to live would only multiply his sins and increase his punishment. But while walking towards the cliffs, the words, “Son, be of good cheer, Thy sins are forgiven thee,” came forcibly into his mind. Such was the light that shone upon him that he fell to the ground. Having recovered, he sought to convince himself that the word was not for him, but the attempt was in vain, and before rising to his feet he had committed himself to the Saviour’s care. Everything that he saw around him seemed to be clothed with a new light. No doubt he was typical of many others.
Jones & Morgan, The Calvinistic Methodist Fathers of Wales, vol I, p. 169
High Plains Parson 